In 0.39*mol CO_2(g), how many moles of carbon are present?

1 Answer
anor277
Oct 4, 2016

0.39 "moles C"

Explanation:

In every "Avogadro's number, "N_A of carbon dioxide, there are N_A carbon atoms, and 2xxN_A oxygen atoms. And N_A carbon dioxide molecules have a mass of approx. 44*g.

What is (i), the mass of the carbon in such a molar quantity; and (ii), the mass of the carbon dioxide in such a molar quantity?

If I asked, "how many oxygen atoms in a dozen" CO_2 "molecules?", would you be able to answer confidently? Because this is what the question in effect asks.

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